fix: 📃 Add LuaSwift license (#658)

feat: Generate and parse EPOC16-friendly SIS files (#655)

This change introduces the `0x10` installer version and uses it to
differentiate between programs for EPOC32 and EPOC16. `makesis` looks
for a `target: epoc16|epoc32` comment in `.pkg` files and uses this to
determine which installer version to use. The Swift bindings have been
updated accordingly.

Includes a couple of drive-by fixes to expose conveniences on the Swift
`Sis` structs to make it easier to test test in downstream apps like
Reconnect.

style: Add comment to decompiled sources

feat: Support compiling and decompiling series 3 programs

fix: Support ‘-h’ flag in dumpaif, dumpfont, and fscomp (#651)

test: Make everything in tcompiler.lua also run through the decompiler

Which at least tests that the program snippets in the compiler tests
can be decompiled to something compilable.

Also some refactors to decompiler.lua to make it more amenable to
testing.

fix: FloatToUint shouldn't be a noop

Although nothing has noticed thusfar...

fix(qt): Implement missing ellipse drawcmd

feat: Add --decompile option to dumpopo

fix: Add Arch x86_64 builds (#636)